+/*
+void Mod_Q3BSP_RecursiveGetVisible(q3mnode_t *node, model_t *model, const vec3_t point, const vec3_t mins, const vec3_t maxs, int maxleafs, q3mleaf_t *leaflist, int *numleafs, int maxsurfaces, q3msurface_t *surfacelist, int *numsurfaces, const qbyte *pvs)
+{
+ mleaf_t *leaf;
+ for (;;)
+ {
+ if (!BoxesOverlap(node->mins, node->maxs, mins, maxs))
+ return;
+ if (!node->plane)
+ break;
+ Mod_Q3BSP_RecursiveGetVisible(node->children[0], model, point, mins, maxs, maxleafs, leaflist, numleafs, maxsurfaces, surfacelist, numsurfaces, pvs);
+ node = node->children[1];
+ }
+ leaf = (mleaf_t *)node;
+ if ((pvs == NULL || CHECKPVSBIT(pvs, leaf->clusterindex)))
+ {
+ int marksurfacenum;
+ q3msurface_t *surf;
+ if (maxleafs && *numleafs < maxleafs)
+ leaflist[(*numleaf)++] = leaf;
+ if (maxsurfaces)
+ {
+ for (marksurfacenum = 0;marksurfacenum < leaf->nummarksurfaces;marksurfacenum++)
+ {
+ face = leaf->firstleafface[marksurfacenum];
+ if (face->shadowmark != shadowmarkcount)
+ {
+ face->shadowmark = shadowmarkcount;
+ if (BoxesOverlap(mins, maxs, face->mins, face->maxs) && *numsurfaces < maxsurfaces)
+ surfacelist[(*numsurfaces)++] = face;
+ }
+ }
+ }
+ }
+}
+
+void Mod_Q3BSP_GetVisible(model_t *model, const vec3_t point, const vec3_t mins, const vec3_t maxs, int maxleafs, q3mleaf_t *leaflist, int *numleafs, int maxsurfaces, q3msurface_t *surfacelist, int *numsurfaces)
+{
+ // FIXME: support portals
+ if (maxsurfaces)
+ *numsurfaces = 0;
+ if (maxleafs)
+ *numleafs = 0;
+ if (model->submodel)
+ {
+ if (maxsurfaces)
+ {
+ for (marksurfacenum = 0;marksurfacenum < leaf->nummarksurfaces;marksurfacenum++)
+ {
+ face = ent->model->brushq3.surfaces + leaf->firstmarksurface[marksurfacenum];
+ if (BoxesOverlap(mins, maxs, face->mins, face->maxs) && *numsurfaces < maxsurfaces)
+ surfacelist[(*numsurfaces)++] = face;
+ }
+ }
+ }
+ else
+ {
+ pvs = ent->model->brush.GetPVS(ent->model, relativelightorigin);
+ Mod_Q3BSP_RecursiveGetVisible(ent->model->brushq3.data_nodes, model, point, mins, maxs, maxleafs, leaflist, numleafs, maxsurfaces, surfacelist, numsurfaces, pvs);
+ }
+}
+*/
+
+void Mod_Q3BSP_BuildTextureFaceLists(void)
+{
+ int i, j;
+ loadmodel->brushq3.data_texturefaces = Mem_Alloc(loadmodel->mempool, loadmodel->nummodelsurfaces * sizeof(q3msurface_t *));
+ loadmodel->brushq3.data_texturefacenums = Mem_Alloc(loadmodel->mempool, loadmodel->nummodelsurfaces * sizeof(int));
+ for (i = 0;i < loadmodel->brushq3.num_textures;i++)
+ loadmodel->brushq3.data_textures[i].numfaces = 0;
+ for (i = 0;i < loadmodel->nummodelsurfaces;i++)
+ loadmodel->brushq3.data_faces[loadmodel->surfacelist[i]].texture->numfaces++;
+ j = 0;
+ for (i = 0;i < loadmodel->brushq3.num_textures;i++)
+ {
+ loadmodel->brushq3.data_textures[i].facelist = loadmodel->brushq3.data_texturefaces + j;
+ loadmodel->brushq3.data_textures[i].facenumlist = loadmodel->brushq3.data_texturefacenums + j;
+ j += loadmodel->brushq3.data_textures[i].numfaces;
+ loadmodel->brushq3.data_textures[i].numfaces = 0;
+ }
+ for (i = 0;i < loadmodel->nummodelsurfaces;i++)
+ {
+ loadmodel->brushq3.data_faces[loadmodel->surfacelist[i]].texture->facenumlist[loadmodel->brushq3.data_faces[loadmodel->surfacelist[i]].texture->numfaces] = loadmodel->surfacelist[i];
+ loadmodel->brushq3.data_faces[loadmodel->surfacelist[i]].texture->facelist[loadmodel->brushq3.data_faces[loadmodel->surfacelist[i]].texture->numfaces++] = loadmodel->brushq3.data_faces + loadmodel->surfacelist[i];
+ }
+}
+
+void Mod_Q3BSP_RecursiveFindNumLeafs(q3mnode_t *node)
+{
+ int numleafs;
+ while (node->plane)
+ {
+ Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
+ node = node->children[1];
+ }
+ numleafs = ((q3mleaf_t *)node - loadmodel->brushq3.data_leafs) + 1;
+ if (loadmodel->brushq3.num_leafs < numleafs)
+ loadmodel->brushq3.num_leafs = numleafs;
+}
+